61373404476511 has 2 divisors, whose sum is σ = 61373404476512. Its totient is φ = 61373404476510.

The previous prime is 61373404476451. The next prime is 61373404476523. The reversal of 61373404476511 is 11567440437316.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61373404476511 - 2²⁵ = 61373370922079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61373404479511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30686702238255 + 30686702238256.

It is an arithmetic number, because the mean of its divisors is an integer number (30686702238256).

Almost surely, 2^{61373404476511} is an apocalyptic number.

61373404476511 is a deficient number, since it is larger than the sum of its proper divisors (1).

61373404476511 is an equidigital number, since it uses as much as digits as its factorization.

61373404476511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5080320, while the sum is 52.

The spelling of 61373404476511 in words is "sixty-one trillion, three hundred seventy-three billion, four hundred four million, four hundred seventy-six thousand, five hundred eleven".